pervert

PERVERT noun

[ C ] uk/ˈpɜːvɜːt/ us
someone who gets sexual pleasure in a strange or unpleasant way

извращенец
pervert verb [ T ] uk/pəˈvɜːt/ us
to change something that is right into something that is wrong

извращать, искажать
They were charged with conspiracy to pervert the course of justice.